1205163001 has 8 divisors (see below), whose sum is σ = 1414554560. Its totient is φ = 1005077808.

The previous prime is 1205162983. The next prime is 1205163067. The reversal of 1205163001 is 1003615021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1205163001 - 2¹¹ = 1205160953 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1205163001.

It is not an unprimeable number, because it can be changed into a prime (1205163601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2326311 + ... + 2326828.

It is an arithmetic number, because the mean of its divisors is an integer number (176819320).

Almost surely, 2^1205163001 is an apocalyptic number.

It is an amenable number.

1205163001 is a deficient number, since it is larger than the sum of its proper divisors (209391559).

1205163001 is an equidigital number, since it uses as much as digits as its factorization.

1205163001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4653183.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 1205163001 is about 34715.4576665784. The cubic root of 1205163001 is about 1064.1804184721.

Adding to 1205163001 its reverse (1003615021), we get a palindrome (2208778022).

The spelling of 1205163001 in words is "one billion, two hundred five million, one hundred sixty-three thousand, one".